linux-kernel - [PATCH 2/2] regulator: da9063: Add missing initialization of da9063_reg

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Date:	Mon,  9 Sep 2013 13:49:27 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Krystian Garbaciak <krystian.garbaciak@...semi.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Mark Brown <broonie@...nel.org>
Cc:	linux-kernel@...r.kernel.org,
	Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [PATCH 2/2] regulator: da9063: Add missing initialization of da9063_reg_matches

With gcc 4.1.2:

drivers/regulator/da9063-regulator.c: In function ‘da9063_regulator_probe’:
drivers/regulator/da9063-regulator.c:847: warning: ‘da9063_reg_matches’ is used
uninitialized in this function

If the parent device already has platform data, da9063_reg_matches will
not be initialized.

Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
---
Can this happen? Or will any of the b*_merged flags be set in this case, so
the while loop continues and we never get to the place where
da9063_reg_matches is used? The code is too convoluted for me to see...

 drivers/regulator/da9063-regulator.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/da9063-regulator.c b/drivers/regulator/da9063-regulator.c
index b9f2653..3d910f4 100644
--- a/drivers/regulator/da9063-regulator.c
+++ b/drivers/regulator/da9063-regulator.c
@@ -717,7 +717,7 @@ static int da9063_regulator_probe(struct platform_device *pdev)
 {
 	struct da9063 *da9063 = dev_get_drvdata(pdev->dev.parent);
 	struct da9063_pdata *da9063_pdata = dev_get_platdata(da9063->dev);
-	struct of_regulator_match *da9063_reg_matches;
+	struct of_regulator_match *da9063_reg_matches = NULL;
 	struct da9063_regulators_pdata *regl_pdata;
 	const struct da9063_dev_model *model;
 	struct da9063_regulators *regulators;
-- 
1.7.9.5

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